Meaning of yellow boy in English:
yellow boy
noun
slang, archaic, historicalA gold coin, especially a guinea or a sovereign.
Pronunciation
yellow boy
/ˈjɛləʊ bɔɪ/ /ˌjɛləʊ ˈbɔɪ/Origin
Mid 17th century; earliest use found in Edmund Gayton (1608–1666), physician and hack writer. From yellow + boy, with allusion to the coin's colour.
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